Elite athletes can push their bodies to the very limit, but even they can't surpass the boundaries of human nature, according ...

Even the most elite endurance athletes can’t outrun biology. A new study finds that humans hit a metabolic ceiling at about 2.5 times their resting energy burn. When ultra-runners take on races that ...

Scientists tracked 14 elite endurance athletes for a year and found a metabolic ceiling: no one sustained more than 2.5× ...

Individual athletes ran an average of 4,000 miles over a year to help define the human body's limit for energy expenditure ...

Increasing your stamina benefits you long after you complete your last rep or final mile, too. In fact, maintaining endurance ...

The ultrarunner and mountaineer’s States of Elevation project pushed him to his limits as he journeyed from scorching deserts ...

A boundary is emerging for the most seasoned endurance athletes. Beyond apparent performances and records, their bodies seem ...

Running may help burn calories, but when it comes to preventing diabetes and obesity, pumping iron might have the edge, ...

If you want to avoid hitting the wall, take a look at your nutrition, training, and race plan.

Many runners analyze every aspect of their performance to find and fix the smallest faults. And expert guidance often centers ...

It” is a supplement called Nomio, a concentrated shot extracted from broccoli sprouts that has emerged as the hottest new ...

It’s hard to say what the average weekend warrior can take from a study of ultra-athletes who ran thousands of miles in a European foot race — aside from inspiration and a sense of awe. But for those ...